My phone starting going from normal coloring to flashing purple and green at different times. I haven't dropped it in water, but when I got the phone it had been dropped before. But I never had this issue until now. Is this covered by my TEP or not?

it should be..but if im remembering right the screens are no longer changed out in the repair stores. i would take it in anyways just to check. to be honest i would start with just yanking your sd card for 2+ minutes...hold the power button down for 10+ seconds..then put the battery back in and fire it up...test it..post if this last method worked or not. if not then we will move on to the next attempt